<template>
  <el-card>
    <div class="mod-config">
      <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
        <el-form-item>
          <el-input v-model="dataForm.key" placeholder="参数名" clearable></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="getDataList()">查询</el-button>
          <el-button v-if="isAuth('eascourse:course:save')" type="primary" @click="addOrUpdateHandle()">新增</el-button>
          <el-button v-if="isAuth('eascourse:course:delete')" type="danger" @click="deleteHandle()" :disabled="dataListSelections.length <= 0">批量删除</el-button>
        </el-form-item>
      </el-form>
      <el-table
        :data="dataList"
        border
        v-loading="dataListLoading"
        @selection-change="selectionChangeHandle"
        style="width: 100%;">
        <el-table-column
          type="selection"
          header-align="center"
          align="center"
          width="50">
        </el-table-column>
        <el-table-column
          prop="id"
          header-align="center"
          align="center"
          label="主键">
        </el-table-column>
        <el-table-column
          prop="courseName"
          header-align="center"
          align="center"
          label="课程名称">
        </el-table-column>
        <el-table-column
          prop="courseCode"
          header-align="center"
          align="center"
          label="课程编码">
        </el-table-column>
        <el-table-column
          prop="classHour"
          header-align="center"
          align="center"
          label="课时">
        </el-table-column>
        <el-table-column
          prop="type"
          header-align="center"
          align="center"
          label="课程类型">
        </el-table-column>
        <el-table-column
          fixed="right"
          header-align="center"
          align="center"
          width="150"
          label="操作">
          <template slot-scope="scope">
            <el-button type="text" size="small" v-if="isAuth('eascourse:course:update')" @click="addOrUpdateHandle(scope.row.id)">修改</el-button>
            <el-button type="text" size="small" v-if="isAuth('eascourse:course:delete')" @click="deleteHandle(scope.row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="sizeChangeHandle"
        @current-change="currentChangeHandle"
        :current-page="pageIndex"
        :page-sizes="[10, 20, 50, 100]"
        :page-size="pageSize"
        :total="totalPage"
        layout="total, sizes, prev, pager, next, jumper">
      </el-pagination>
      <!-- 弹窗, 新增 / 修改 -->
      <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="getDataList"></add-or-update>
    </div>
  </el-card>
  
</template>

<script>
  import { courseApi } from '@/api/course'
import AddOrUpdate from './course-add-or-update'
  export default {
    data () {
      return {
        dataForm: {
          key: ''
        },
        dataList: [],
        pageIndex: 1,
        pageSize: 10,
        totalPage: 0,
        dataListLoading: false,
        dataListSelections: [],
        addOrUpdateVisible: false
      }
    },
    components: {
      AddOrUpdate
    },
    mounted() {
      this.getDataList()
    },
    methods: {
      // 获取数据列表
      getDataList () {
        let params={
            'page': this.pageIndex,
            'limit': this.pageSize,
            'key': this.dataForm.key
          }
        this.dataListLoading = true
        courseApi.listCourse(params).then(({page})=>{
          
            this.dataList = page.list
            this.totalPage = page.totalCount
           
          this.dataListLoading = false
       
          
        })
      },
      // 每页数
      sizeChangeHandle (val) {
        this.pageSize = val
        this.pageIndex = 1
        this.getDataList()
      },
      // 当前页
      currentChangeHandle (val) {
        this.pageIndex = val
        this.getDataList()
      },
      // 多选
      selectionChangeHandle (val) {
        this.dataListSelections = val
      },
      // 新增 / 修改
      addOrUpdateHandle (id) {
        this.addOrUpdateVisible = true
        this.$nextTick(() => {
          this.$refs.addOrUpdate.init(id)
        })
      },
      // 删除
      deleteHandle (id) {
        var ids = id ? [id] : this.dataListSelections.map(item => {
          return item.id
        })
        this.$confirm(`确定对[id=${ids.join(',')}]进行[${id ? '删除' : '批量删除'}]操作?`, '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          courseApi.deleteCourse(ids).then((data) => {
            if (data && data.code === 20000) {
              this.$message({
                message: '操作成功',
                type: 'success',
                duration: 1500,
                onClose: () => {
                  this.getDataList()
                }
              })
            } else {
              this.$message.error(data.message)
            }
          })
        })
      }
    }
  }
</script>
